Microbial Degradation of Explosive Manufacturing Facility Wastewater in a Bioreactor

Sharma, Kirty; Sangwan, Pritam; Sharma, Preeti

doi:10.1007/s41742-023-00540-y

Cited by 3 publications

(1 citation statement)

References 29 publications

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“…Hence, there is a growing need for eco-friendly biological treatment methods to purify dyestuffs from factory discharge waters. Chemical and physical treatment technologies may not be enough and can even contribute to environmental pollution (Adamu et al, 2023;Sharma et al, 2023;Zawrah et al, 2023). White rot fungi that produce nonspeci c extracellular ligninolytic enzymes are being studied as an alternative solution for treating wastewater contaminated with dyestuffs.…”

Section: Introductionmentioning

confidence: 99%

Nature-friendly Approach to Environmental Pollution: Biological Removal of Dispersed Yellow 4G Dye by mixed fungi cell-CaAlj-PVA

Mayanja,

Onac,

Akdogan

et al. 2023

Preprint

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The study investigated the biological removal of dispersed yellow 4G dye in different concentrations by four types of fungi cells. Firstly, the study determined two fungi species, Morchella esculenta and Trametes versicolor, with the highest biological removal rate, by examining their enzyme activities for laccase and MnP, as well as the biological removal of dyestuff by the free fungi cells. After 120 hours of testing, the biological removal of dye in different concentrations by M. esculenta and T. versicolor in their free forms was 85.86, 83.67, 72.18, 70.38, 60.76, and 84.66, 83.12, 79.37, 67.54, 60.35%, respectively. Next, the study prepared a mixture of the fungi cells with the highest biodegradation rate, and then examined enzyme activity and biological dyestuff removal, firstly with the free fungi cell consortium and then with the calcium alginate-PVA-immobilized cell mixture. Within 120 hours, using immobilized M.esculenta and T. versicolor cell mixture, dispersed yellow 4G dye in different concentrations was degraded by 96.24, 88.37, 85.40, 75.72, and 59.36%, respectively. With the free M.esculenta and T. versicolor cell consortium, degradation rates of 92.47, 85.61, 63.46, 43.72, and 38.36% were observed. These results showed that immobilized cells were more suitable for the biological removal of dispersed yellow 4G dyestuffs. During the study, the roles of laccase and manganese peroxidase enzyme activity control were examined, to investigate whether dispersed 4G dyestuff was biologically degraded by the fungus cells. The study also varied the concentration of dye to investigate its effect on the performance of the fungal cells.

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Section: Introductionmentioning

confidence: 99%

Nature-friendly Approach to Environmental Pollution: Biological Removal of Dispersed Yellow 4G Dye by mixed fungi cell-CaAlj-PVA

Mayanja,

Onac,

Akdogan

et al. 2023

Preprint

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Identification and Analysis of the Intermediates from Photodegradation of 3,3′-diamino-4,4′-azoxyfurazan (DAAF) by SERS and HPLC–MS/MS

Wu,

Zhang,

Zheng

et al. 2024

J. Anal. Test.

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Bioremediation of RDX and HMX contaminated soil employing a biochar-based bioformulation

Sharma,

Sangwan

2023

Carbon Res.

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Compounds like Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) and Octahydro-1, 3, 5, 7-tetranitro-1, 3, 5, 7-tetrazocine (HMX) are categorised as a secondary explosive. These secondary explosives are widely employed for defence and civil purposes worldwide. The release of explosive compounds in the environment during their production, storage and usage results in severe soil and water contamination. Pollution caused by explosives is a major concern as it is recalcitrant in nature and has toxic effects on human beings, animals and plants. There is a need to find an eco-friendly and sustainable approach to deal with explosive contaminated soil. In the present study, bioformulation was prepared with explosive degrading bacteria to treat explosive contaminated soil. Bioformulation consisted of coconut husk-derived biochar as a carrier material and Arthrobacter subterraneus as an active ingredient. The survivability of bacteria and performance of bioformulation with different concentrations of explosive compounds were analysed. Results showed that Arthrobacter subterraneus could immobilise with biochar and can survive up to 6 months. The prepared bioformulation was able to degrade up to 85.98% RDX and 80.4% HMX in contaminated soil in a time duration of 30 days. A significant increase in nitrite concentration, a major byproduct of RDX and HMX biodegradation, was found in soil treated with bioformulation. Thus, bioformulation can be applied to remediate explosive-contaminated sites as an eco-friendly technique. Graphical Abstract

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Microbial Degradation of Explosive Manufacturing Facility Wastewater in a Bioreactor

Cited by 3 publications

References 29 publications

Nature-friendly Approach to Environmental Pollution: Biological Removal of Dispersed Yellow 4G Dye by mixed fungi cell-CaAlj-PVA

Nature-friendly Approach to Environmental Pollution: Biological Removal of Dispersed Yellow 4G Dye by mixed fungi cell-CaAlj-PVA

Identification and Analysis of the Intermediates from Photodegradation of 3,3′-diamino-4,4′-azoxyfurazan (DAAF) by SERS and HPLC–MS/MS

Bioremediation of RDX and HMX contaminated soil employing a biochar-based bioformulation

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